Shaping machine



April 14, 193i. R CARTER 1,801,035

SHAPING MACHINE Filed Jan. '10, 1930 INVENTOR ATTORNEY,

Patented Apr. 14, 1931 UNITED STATES PATENT OFFICE RAY L. CARTER, F PHOENIX, NEW YORK, ASSIGNOR TO THE STANLEY WORKS, OF NEW BRITAIN, CONN EC'IICUT, A GORPORAITION'OF CONNECTICUT SHAPING MACHINE Application filed January 10, 1930. Serial No. 419,868.

This invention relates to motor driven shapers, designed for use by pattern-makers, carpenters, cabinet-makers, and other wood workers, and has especial reference to the construction of the shaping tools, and the means for holding the same.

The object of the invention is to provide a novel shaping tool, having a plane rectangular body, which may be stamped from sheet steel, to provide blanks having three free edges, all of which may be ground and sharpened to effect various shaping or routing cuts such as cavities and grooves, beads, or other ornamental patterns. A further object is to provide a novel holder for the tool comprising a partially threaded split collet or adapter, which may be screwed into a threaded chuck carried by the motor shaft, the top or non-cutting edge of the tool being slotted to provide a medial and two lateral tongues that face the chuck, the medial tongue adapted to be inserted between the members of the collet,and having upon its opposite plane faces means to connect with corre- 25 sponding sockets formed in the meeting faces of the collet members, to inter-lock said parts, and prevent rotation of the tool in the plane of the axis of the chuck, and the said collet being provided with wrench receiving portions by which the tool and related parts may be made rigid to an armature or other shaft. And a further object is to provide plain staple cutter blanks of the character described, in several sizes, to be furnished to the users of shaping machines equipped with the threaded chucks and split collets, and said blanks may be ground or otherwise conditioned by the operators of the shapers, to perform regular or special shaping work.

I attain these objects by the means set forth in the detailed description which follows, and as illustrated by the accompanying drawing, in which-- Figure 1 is a broken elevation of an electric motor, to which my improvement is applied. Fig. 2 is a central vertical section, taken on line 2-2 of Fig. 3. Fig. 3 is a detached elevational view of the chuck, collet, and tool, taken in the direction of the arrow in Fig. 1. Fig. 4 is a side elevation of one style of shaping tool, having bottom and lateral cutting edges. Fig. 5 is an elevational view of one member of the collet, showing the socket to receive the locking and centering rib of the tool. Fig. 6 is a bottom end View of the shaping parts, shown in Fig. 2. Fig. 7 is a top end view of the tool, shown in Fig. 4. Fig. 8 is an inverted edge view of the split collet. Fig. 9 is a side elevation of a tool ground for ornamental shaping. And Fig. 10 is a side elevation of an undressed tool blank, showing the slot in which inter-lockin'g member is disposed.

In the drawing, 2 represents conventionally an electric motor enclosed by a shell 2, and having an armature shaft 3. 4 represents a cylindrical chuck whose lower end 4 ispreferably reduced. The chuck 4 is bored out axially and threaded to receive respectively an enlarged threaded extension or portion 3 of the shaft, and a tool holder or clamp comprising a collet or adapter, which is split diametrically its full length to provide similar halves 55. The top end of the collet is reduced and threaded to screw into the reduced portion 4L of the chuck. Below the threads, the collet is formed conical, as at 5a, and this portion is received in a correspondingly flared socket 4a of the chuck, which tends to force the sections 5-5 towards each other, when the collet is tightened by the use of a wrench, which may grip opposing flattened portions 56 of the sections. The lower end of the collet is spherical and the inner plane surfaces of the sections are formed with coinciding semi-cylindrical sockets 50, which align axially with the shaft 3. 6 represents the shaping tool or blade which is preferably rectangular, and plane throughout its area, and may be formed by shearing 90 or stamping the blanks (see Fig. 10) from high carbon or tool steel. By this arrangement, the bottom 6, and the lateral edges 6a6b may be ground and sharpened, as shown in Figs. 1, 2, 3, 4, and 9, to enable the tool to perform various shaping work. The tool 6 is held in the operative position, shown 1n Figs. 1, 2, 3, and 6 by the clamping members 5-5', and for this purpose the top or non-cutting edge of the blank is formed with 100 a medial tooth and similar lateral teeth 6d. The spacing of the inner or facing edges of the lateral teeth is preferably slightly greater than the diameter of the reduced end 4: of the chuck, to facilitate'free adjustment of the tool in the line of the axis of the shaft 3, as shown by the dotted lines in Fig. 1. The tongue 60 is disposed between the sections 55 of the collet (see Figs. 1, 2 and 3) which clamp and hold the tool rigid when the collet is screwed tightly into the chuck l. The collet or adapter is primarily turned up in a single part which is threaded, and bored to provide the sockets 50, after which the said part is split lengthwise by a circular miller having substantially the same gage as the blades 6. This reduces thediameter of the threaded portions of members 5-5 to such extent that it requires the spacing of said members by the insertion of the blade 6 to enable-the collet to be screwed into the chuck, as described. The tool 6 may be centered, and held from rotation in the plane of the shaft 3, by any suitable inter-locking means, as semi-cylindrical ribs 7, which engage the sockets 50 of the collet members, the said ribs being preferably formed by inserting a cylindrical member, as 7, of greater diameter than the gage of the tool, in a narrow slot 66, which is cut in the medial tongue 60, as shown in Figs. 2, at and 10. The member 7 may be rigidly securedto the tool by brazing or welding.-

Having thus I claim, is

1. In a shaper, the combination with a chuck having a threaded axial bore to receive a motor shaft, of a shaping tool comprising a plane rectangular blade, one edge of said blade being formed with a medial and two lateral tongues that face the chuck, the other edges of said tool adapted to be sharpened to effect shaping cuts, means adapted to grip the medial tongue to secure the tool to the chuck, and means supported by the medial tongue and interlocking with said gripping means to prevent rotation of the tool in the plane of said shaft.

described my invention, what 2. In a shaper, the combination with a.

motor driven shaft and an internally threaded chuck, of a shaping tool comprising a plane rectangular body adapted to be sharpened at screwed :into the bore of the chuck, and complementary means carried by said medial tongue and the members of said holder to interlock said parts.

4. In a shaper, the combination with a motor driven shaft and an internally threadedchuck having a conical socket intersecting said threads, of a shaping tool comprising a plane rectangular body adapted to be sharpened at three of its edges, the fourth edge being formed with spaced tongues, and means to connect the tool with the chuck comprising a split collet, the halves of the collet adapted to be mounted upon the opposite sides of one of said tongues, said halves havingcoinciding threaded portions adapted when spaced by said tool to be screwed into the bore ,of the chuck and having complementary portions to seat in the socket of the chuck to effect the clamping and rigid holding of the toolin the operative position. i 5. In a shaper, the combination with a motor driven shaft and an internally threaded chuck, of a shaping tool comprising a plane recangular body adapted to besharp'ened at three of its edges, the fourth edge being formed withospaced tongues that face the chuck, one of said tongues being formed with oppositely facing ribs, and a holder for said tool comprising a collet split centrally longitudinally, the halves of the collet adaptedto be mounted upon the oppositev faces of the last named tongue and having sockets to receive said ribs, said halves being threaded beyond said sockets and adapted to be screwed 7 into the bore of the chuck to connect the tool with the said shaft.

In testimony whereof I afiix my signature.

. RAY. L. CARTER.

three of its edges, the fourth edge being formed with spaced tongues that face the chuck, and meansto connect the tool with the chuck comprising a collet split centrally longitudinally, the halves of thecollet adapted to be mounted upon the opposite sides of one of said tongues, and said halves having threaded portions adapted to be screwed as one part into the bore of the chuck in line axially with said shaft to effect the clamping of the tool.

and rigid holding 3. In a shaper, the combination with a chuck having athreaded axial bore to receive 

